Gas burner



Oct. 30 1923. 1,472,554

s. A. cox

GAS BURNER Fi1ed.Aug. 17 1922 INVNTOR ATTORNEYS.

5/@0/7e/9 COX l BYWWM Wat@ Patented Oct. 3U, 1923.

STEPHEN A. D. COX, OF ONTARIO', CALIFORNIA.V

GAS BURNER.

i Y Application led August 17, 1922. Serial No. 582,388.l

and useful Improvements in Gas Burners, of

which the following is a specification.

This invention relates to a burner of fuel which operates to draw or induce air into 3G the fuel and forms a mixture therewith by reason of the flow of the fuel through suitable passages. The burner herein disclosed is of the Bunsen type.

In the oil field, it is common practice to use the gas from the oil wells as fuel in the boiler furnaces. One volume of gas requires about twelve volumes of air. It is advisable to use single burners of large capacity. it has been found impossible to induce suificient air to produce a correct mixture and to preserve the iow of the mixture in Vjet or vein form. An insufficient amount of air is mixed with the fuel in the burner and incomplete combustion occurs resulting in an excessive amount of smoke being produced.

The flow of air through an orifice depends upon the size, shape, the contraction of the vein and the friction of the orifice. I have discovered that by inducing air through' one set of orifices and mixing with a vein or jetI of gas, then directing the vein of mixed air and gas in a straight line so as to produce a vein, that this mixture can be used to induce more air. In other words, a complete mixture may be obtained by compounding the burner. My invention has, for its primary objeclJ to produce a compound burner of the character above referred to.V Other objects of this invention are to produce a burner which requires substantially no attention while in operation, is simple, and requires no adjustment. A further object is to produce a burner which is adapted for use by unskilled workmen. These objects together with other objects and corresponding accomplishments are obtained by means of the embodiment of my invention illustrated in the accompanying drawing, in which:

Fig. l is a perspective view of the burner; Fig. 2 is a section as seen on the line 2-2 of Vith'larUe ca acit single burners Y Fig. l; and Fig. 3 is a section as seen on the line 3-3 of Fig. l.

The burner has a threaded nipple 4f to adapt it to be connected to a pipe linev sup# plying gas. Extending from the nipple are spider arms 5 embracing a jet nozzle 6 and producing air orifices around the nozzle.

-The arms 5 connect the nipple and a receiving tube 7 which ends in a nozzle 8 serving to contract the mixture iiowing therealong. A discharge pipe 9 is secured to the end of the receiving tube, and adjacent the nozzle 8 tongues 10 are cut forming air orifices. The end of the discharge tube is preferably formed with a baffle plate 11, upon which the mixture may impinge and spread. This causes the flame to be spread in the furnace.

The gas under pressureV passes through the nipple 4 and through the nozzle 6, draw ing in air through the air orifices. The amount of air drawn into the burner through the firstV set of orifices is not sufficient to produce a complete mixture. The air and gas pass into the receiving tube 7 and the mixture is contracted at the nozzle, issuing therefrom in a jet. rlhe mixture then passes into the discharge Vpipe through the nozzle 8, drawing air through the orifices formed by the openings from which the tongues are cut. The complete mixture then issues from the end of the discharge tube and is ready for combustion. The baffle plate 11 serves to spread the flame or mixture.

What I claim is:

l. A burner comprising a tubular member having a long receiving tube portion, a conical nozzle at the inlet end thereof having a contracted bore aligned therewith and spaced therefrom to provide lateral ports for the induction of air, a nozzle at the outlet end of said receiving tube portion, a long discharge tube portion of larger diameter aligned with and extending from said receiving tuberportion and having lateral air orifices at the last mentioned nozzle, and an inclined plate at the end `of the discharge tube portion disposed so that the flame will impinge thereon and be spread.

2. A burner comprising a tubular mem-- ber having a long receiving tube portion, a

conical nozzle et the inlet end thereof having u contracted bore aligned therewith and spaced therefrom to provide lateral ports for the induction of air, a nozzle at the outlet end of said receiving tube portion, and o.- long` discharge tube portion of larger diameter aligned with and extending Vfrom said receiving tube portion, said discharge tube having uil' induction ports formed by tongues upset therefrom at the last men- 10 tioned nozzle.

In Witness that I claim the foregoing l have hereunto subscribed my name this 9th day of August, 1922.

STEPHEN A. D. COX. 

